diff --git a/simulators/simic7610.c b/simulators/simic7610.c
index a319f6233..0640739b3 100644
--- a/simulators/simic7610.c
+++ b/simulators/simic7610.c
@@ -50,6 +50,9 @@ int ovf_status = 0;
 int powerstat = 1;
 int datamode = 0;
 int keyspd = 130; // 130=20WPM
+int ipp = 0;
+int tx_inhibit = 0;
+int dpp = 0;
 
 void dumphex(const unsigned char *buf, int n)
 {
@@ -386,7 +389,7 @@ void frameParse(int fd, unsigned char *frame, int len)
         switch (frame[5])
         {
         case 0x5a:
-            if (frame[6] == 0xfe)
+            if (frame[6] == 0xfd)
             {
                 satmode = frame[6];
             }
@@ -395,10 +398,42 @@ void frameParse(int fd, unsigned char *frame, int len)
                 frame[6] = satmode;
                 frame[7] = 0xfd;
                 n = write(fd, frame, 8);
-
                 if (n <= 0) { fprintf(stderr, "%s(%d) write error %s\n", __func__, __LINE__, strerror(errno)); }
             }
 
+            break;
+        case 0x65:
+            if (frame[6] == 0xfd)
+                ipp = frame[6];
+            else
+            {
+                frame[6] = ipp;
+                frame[7]=0xfd;
+                n = write(fd, frame, 8);
+                if (n <= 0) { fprintf(stderr, "%s(%d) write error %s\n", __func__, __LINE__, strerror(errno)); }
+            }
+            break;
+        case 0x66:
+            if (frame[6] == 0xfd)
+                tx_inhibit = frame[6];
+            else
+            {
+                frame[6] = tx_inhibit;
+                frame[7]=0xfd;
+                n = write(fd, frame, 8);
+                if (n <= 0) { fprintf(stderr, "%s(%d) write error %s\n", __func__, __LINE__, strerror(errno)); }
+            }
+            break;
+        case 0x67:
+            if (frame[6] == 0xfd)
+                dpp = frame[6];
+            else
+            {
+                frame[6] = dpp;
+                frame[7]=0xfd;
+                n = write(fd, frame, 8);
+                if (n <= 0) { fprintf(stderr, "%s(%d) write error %s\n", __func__, __LINE__, strerror(errno)); }
+            }
             break;
         }
 
@@ -745,9 +780,10 @@ int main(int argc, char **argv)
     while (1)
     {
         int len = frameGet(fd, buf);
-
+printf("#1 ========================================");
         if (len <= 0)
         {
+printf("#2 ========================================");
             close(fd);
             fd = openPort(argv[1]);
         }
@@ -758,10 +794,12 @@ int main(int argc, char **argv)
         }
         else
         {
-            hl_usleep(1000 * 1000);
+            hl_usleep(100 * 1000);
         }
 
+printf("#3 ========================================");
         rigStatus();
+printf("#3 ========================================");
     }
 
     return 0;